When Ripa asked him what his go-to karaoke song was, he shot back, "I don't know, why, do you want to battle?"

When guest co-host Chris Harrison commented that conversation was getting "contentious," Ripa picked up on a different vibe. "I feel like we could potentially kiss each other." Renner jokingly puckered up, and after the moment passed, he revealed that his preferred karaoke jams are songs by Journey or Queen.

Renner was on the show to promote "The Bourne Legacy," which hits theaters August 10.

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Most Memorable Daytime TV Moments Ever

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In 1988, Oprah Winfrey embarked on a mission to fit into her skinny jeans. Living off the liquid diet Optifast for months, Oprah managed to drop 67 pounds. Hoping the world would be inspired by her weight loss, the talk show host loaded up a red Radio Flyer wagon with fat and wheeled it onto the stage of "The Oprah Winfrey Show" for viewers to gape at. And gape they did!

When Geraldo Rivera had White Aryan Restistance Youth member John Metzger on his show "Geraldo," he caused more than a little trouble. Metzger called black guest Roy Innis an "Uncle Tom," and Innis immediately began choking Metzger. Rivera quickly stepped in, only to get his nose broken in the process.

In 1995, "Days Of Our Lives" character Marlena (Deidre Hall) found herself possessed by the demon Sucubus. Luckily, her husband John (Drake Hogestyn), believed he was a priest in a former life and was able to perform an exorcism on Marlena.

When Ellen Degeneres came out on the cover of Time in 1997, it sparked an incredible amount of controversy. Shortly after the magazine hit stands, Degeneres appeared on "The Oprah Winfrey Show" to share her struggle and identity with viewers everywhere.

In 2004, Alex Trebek shaved his signature mustache to the shock of fans everywhere. Would Trebek be able to carry "Jeopardy" without his 'stache? Only time would tell.

When Alicia Keys cohosted "Live! With Regis and Kelly" in 2004, Regis Philbin couldn't resist pulling a smooth move on the singer. After asking Keys for a kiss on the cheek, Regis quickly turned his face so her kiss landed right on his lips. Nice one, Reeg!

After getting into a heated debate about Iraq, Rosie O'Donnell and Elisabeth Hasselbeck headed straight into cat fight territory on a 2007 episode of "The View," with O'Donnell calling Hasselbeck a coward.

After being nominated for Outstanding Lead Actress 19 times, Susan Lucci finally nabbed an Emmy in 2008 for her portrayal of Erica Kane on "All My Children."

"Today" host Ann Curry is a woman of many talents, but geography may not be one of them. In 2008, the TV host pointed to Minnesota and said it was Illinois. Oops!

After 41 years on ABC, "All My Children" came to an end in September of 2011. But ABC didn't seem to care whether or not fans got closure -- the series ended on a cliffhanger, with the very strong possibility that Erica Kane (Susan Lucci) had been shot. Was she or wasn't she? The world will never know.